PROBLEMWhen installing GFI MailEssentials or upgrading to GFI MailEssentials from an earlier version the user interface fails to load and encounters the following error:
HTTP Error 503. The Service is unavailable.
Additionally, you may notice that the application pool for GFI MailEssentials is stopped, and when trying to open the configuration page, IIS will not be able to access the configuration with the following error:
There was an error while performing this operation.
Error: The configuration section 'system.web.extenstions' cannot be read because its missing a section declaration
- GFI MailEssentials
- Microsoft Windows 2008
- Internet Information Services (IIS) 7